check_commands.sh

check_commands.sh

#!/bin/sh

# @param $1 = command
function command_exists() {
	if type $1 > /dev/null 2>&1; then
		return 1
	else
		return 0
	fi
}

# @param $1 = command
# @param $2 = application name
function check_command() {
	command_exists $1
	if [ $? -ne 1 ]; then
		echo
		echo "ERROR: $2 is not installed"
		echo
		exit 1
	fi
	echo "$2 ... installed"
}

echo "================================================================"
echo "  Checking commands"
echo "================================================================"

check_command perl "Perl"
check_command convert "ImageMagick"
check_command gs "GhostScript"
check_command platex "pLaTeX"
check_command dvipdfmx "dvipdfmx"
check_command ffmpeg "ffmpeg"